Your monitor's refresh rate is a measure of how frequently the on-screen image is updated. Refresh rate is measured in hertz (Hz), which indicates the number of times per second something occurs.

The refresh rate is how frequently the monitor updates the image on the screen. If your GPU’s frame rate is higher than your monitor’s refresh rate, you’re going to run into some problems.

A higher refresh rate means a smooth transition of motion and less screen flickering, which is essential when performing fast-paced tasks on your computer, such as PC gaming or graphic design.

Once you’ve selected the desired refresh rate, click Apply, and the screen will go dark for a moment. Windows will ask if you want to keep the desired settings.

Your monitor's refresh rate just tells you how many times a second the image on screen is updated — so for example, a refresh rate of 60Hz means the screen is updated 60 times a second.